Document Type and Number:
United States Patent 3125723

Publication Date:
03/17/1964
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Primary Class:
704/213
International Classes:
G10L11/00
US Patent References:
2448718Method of and device for producing pulses at the maximum or minimum of an electric impulse
2673893Phonetic printer of spoken words
2699464Fundamental pitch detector system
2962553Coding and decoding system


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